@Macuser-22 is absolutely correct - your first (best) option is to have the preparer amend the return to add the missing W-2. The preparer should be willing to do this at a very reasonable cost.
Using TurboTax would be time-consuming and cost at leas $79.99. See File your 2019 taxes for 2019 pricing. If you decide to take that approach, follow @macuser_22 's instructions.
